Home / 20,553.03-30,829.55-4,970.66

Finding the Fourth Proportional to 20,553.03, 30,829.55 and 4,970.66

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Solution

The fourth proportional to 20,553.03, 30,829.55 and 4,970.66 is: 7,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.03 : 30,829.55 = 4,970.66 : x
  2. Step 2: Convert to fraction form
    20,553.03/30,829.55 = 4,970.66/x
  3. Step 3: Cross multiply
    20,553.03x = 30,829.55 × 4,970.66
  4. Step 4: Simplify right side
    20,553.03x = 153,243,032.00
  5. Step 5: Solve for x
    x = 153,243,032.00/20,553.03
  6. Step 6: Final answer
    x = 7,455.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.